光子学报, 2010, 39 (11): 2078, 网络出版: 2010-12-07   

基于纠缠交换和团簇态实现二粒子任意态的可控隐形传态

Controlled Teleportation of an Arbitrary Twoparticle State by Using a Fourqubit Cluster State and Entanglement Swapping
作者单位
1 江西师范大学 物理与通信电子学院,南昌 330022
2 江西省光电子与通信重点实验室,南昌 330022
摘要
提出一个对二粒子任意态的可控隐形传态方案,利用四粒子团簇态作为量子信道,用EPR态实现控制.首先,发送者向控制者提出申请,控制者再对其拥有的2个粒子做Bell基测量,并把结果通知发送者,实现纠缠交换.然后,发送者对自己手中的四个粒子做适当的幺正变换,接着进行纽曼测量,并把结果通知接受者.接受者根据发送者的测量结果,对自己拥有的粒子做适当的幺正变换,就可以重建发送者的二粒子任意态.方案成功的概率为100%.
Abstract
A new scheme for controlled teleportation of an arbitrary twoparticle state is proposed in detail, using a fourparticle cluster state as quantum channel and EPR state to achieve control. First of all, the sender applies to the controller, and then the controller performs the Bellbased measurement on the two particles of his own. And the controller notifies the sender to achieve entanglement swapping. Then, the sender makes the appropriate unitary transformation and performs a Newman measurements on the four particles of his own. And the results inform the receiver. According to the sender′s measurement results, the receiver can reconstruct the arbitrary twoparticle state after he makes the appropriate unitary transformation on his own particles. The success probability of the program is 100%.

刘俊昌, 李渊华, 聂义友. 基于纠缠交换和团簇态实现二粒子任意态的可控隐形传态[J]. 光子学报, 2010, 39(11): 2078. LIU Junchang, LI Yuanhua, NIE Yiyou. Controlled Teleportation of an Arbitrary Twoparticle State by Using a Fourqubit Cluster State and Entanglement Swapping[J]. ACTA PHOTONICA SINICA, 2010, 39(11): 2078.

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